User Hossein

18 votes

2 answers

6k views

Finding the effective Hamiltonian in a certain subspace

asked Apr 10, 2017 at 17:04

12 votes

2 answers

966 views

General method of deriving the mean field theory of a microscopic theory

asked Nov 12, 2016 at 13:02

8 votes

0 answers

194 views

Different sectors of the Ising gauge theory

asked Sep 7, 2020 at 19:15

6 votes

1 answer

566 views

Is gauge structure necessary for topological order?

asked Apr 17, 2018 at 10:17

5 votes

1 answer

176 views

Quantization of Flux in Polyakov's 3D Compact QED

asked Aug 18, 2020 at 10:36

4 votes

1 answer

2k views

Fixed points in the renormalization group

asked Aug 3, 2016 at 20:15

3 votes

1 answer

136 views

The Energy Spectrum of Bound states in the Vortex Core of Type II Superconductors

asked Jun 3, 2019 at 13:00

3 votes

0 answers

58 views

Correctness of a relation for qunatum electron gas

asked Oct 28, 2016 at 10:03

3 votes

0 answers

201 views

Specific Heat of SYK Model

asked Sep 30, 2022 at 16:57

2 votes

0 answers

717 views

Tight binding Hamiltonian in the k-space

asked Jun 12, 2016 at 18:41

2 votes

2 answers

465 views

Contradiction between Fermionic and Grassmann algebra

asked Jan 5, 2017 at 7:37

2 votes

1 answer

415 views

Defining renormalization factor

asked Sep 14, 2016 at 10:40

2 votes

2 answers

1k views

Finite temperature correlation functions in QFT

asked Dec 17, 2015 at 9:40

1 vote

1 answer

438 views

Derivation of stress-energy tensor in curved space-time

asked Sep 2, 2015 at 2:54

1 vote

2 answers

104 views

Quantum field operators in HEP and CMT

asked Oct 4, 2015 at 7:46

1 vote

0 answers

47 views

Calculating an average according to a Gaussian distribution

asked Sep 30, 2016 at 10:29

1 vote

0 answers

131 views

Magnetic susceptibility in the spin triplet channel

asked Mar 22, 2016 at 16:18

1 vote

0 answers

153 views

Electrical conductivity of complex scalar field

asked May 20, 2020 at 8:52

1 vote

1 answer

113 views

How to construct invariant forms under the effect of an arbitrary group?

asked May 15, 2019 at 8:57

1 vote

1 answer

99 views

Excitations of Neutral Superfluids and their Interactions

asked Apr 10, 2022 at 19:31

0 votes

0 answers

42 views

Dynamical critical exponent in stochastic vector model

asked Aug 15, 2022 at 16:54

0 votes

1 answer

709 views

Energy gap in phonons and violation of perturbation theory

asked Apr 15, 2016 at 14:51

0 votes

0 answers

182 views

Wavefunction overlap in graphene

asked Feb 12, 2016 at 8:31

Stack Exchange Network

23 Questions

Finding the effective Hamiltonian in a certain subspace

General method of deriving the mean field theory of a microscopic theory

Different sectors of the Ising gauge theory

Is gauge structure necessary for topological order?

Quantization of Flux in Polyakov's 3D Compact QED

Fixed points in the renormalization group

The Energy Spectrum of Bound states in the Vortex Core of Type II Superconductors

Correctness of a relation for qunatum electron gas

Specific Heat of SYK Model

Tight binding Hamiltonian in the k-space

Contradiction between Fermionic and Grassmann algebra

Defining renormalization factor

Finite temperature correlation functions in QFT

Derivation of stress-energy tensor in curved space-time

Quantum field operators in HEP and CMT

Calculating an average according to a Gaussian distribution

Magnetic susceptibility in the spin triplet channel

Electrical conductivity of complex scalar field

How to construct invariant forms under the effect of an arbitrary group?

Excitations of Neutral Superfluids and their Interactions

Dynamical critical exponent in stochastic vector model

Energy gap in phonons and violation of perturbation theory

Wavefunction overlap in graphene